Harrold, SD Radon Mitigation and Testing

Q: What EPA Radon Zone is Harrold in?

Harrold is in Hughes County, EPA Zone 1.

Q: How much does radon mitigation cost in Harrold?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Hughes County

EPA Zone 1

This small community in Hughes County along the Missouri River currently lacks specific radon testing data, though South Dakota's Pierre Shale formation can produce elevated levels. The area's mix of ranch-style homes and farmhouses often features partial basements where radon can accumulate. Central South Dakota's designation as a high-risk radon zone makes baseline testing important for all residential properties.

Harrold, SD Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Harrold, SD Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Harrold Radon Facts

Key details about the radon risk profile for Harrold and the 57536 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Hughes County, SD

Zip Code

57536

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Harrold and the 57536 zip code are located in Hughes County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Harrold, SD

What EPA Radon Zone is Harrold in?

Harrold and the 57536 zip code are in Hughes County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

How much does radon mitigation cost in Harrold?

Radon mitigation in Harrold typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.

Should I test for radon if I'm buying a home in Harrold?

Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.

Most Active Radon Markets in South Dakota

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Spearfish	7.75 pCi/L	4
Rapid City	10.50 pCi/L	2
Aberdeen	8.50 pCi/L	2
Sioux Falls	6.00 pCi/L	2
Watertown	6.00 pCi/L	2